test: new test to verify multiple queries according to .conf

Signed-off-by: Joachim Wiberg <[email protected]>

test/Makefile.am

@@ -5,3 +5,4 @@ TEST_EXTENSIONS    = .sh
 TESTS_ENVIRONMENT  = unshare -mrun
 
 TESTS              = basic.sh
+TESTS             += two.sh

test/two.sh

@@ -0,0 +1,58 @@
+#!/bin/sh
+# Verifies proper parsing of .conf file, and operation wrt two queries
+# in the given time frame.  TODO: check delta between queries.
+
+# shellcheck source=/dev/null
+. "$(dirname "$0")/lib.sh"
+
+# Requires ethtool to disable UDP checksum offloading
+print "Check deps ..."
+check_dep tshark
+
+print "Creating world ..."
+for iface in eth0 eth1 eth3 eth4; do
+    ip link add $iface type dummy
+    ip link set $iface up
+    ip link set $iface multicast on
+done
+ip addr add 192.168.0.1/24 dev eth0
+ip addr add 192.168.1.1/24 dev eth1
+ip addr add 192.168.1.2/24 dev eth1
+ip addr add 192.168.3.1/24 dev eth1
+ip addr add 192.168.2.1/24 dev eth2
+
+ip -br l
+ip -br a
+
+print "Creating config ..."
+cat <<EOF > "/tmp/$NM/config"
+query-interval 5
+iface eth0 enable igmpv3
+iface eth1 enable igmpv3
+EOF
+
+print "Starting collector(s) ..."
+tshark -lni eth0 -w "/tmp/$NM/eth0.pcap" 2>/dev/null &
+echo $! >> "/tmp/$NM/PIDs"
+tshark -lni eth1 -w "/tmp/$NM/eth1.pcap" 2>/dev/null &
+echo $! >> "/tmp/$NM/PIDs"
+sleep 1
+
+print "Starting querierd ..."
+../src/querierd -f "/tmp/$NM/config" -l debug -n &
+echo $! >> "/tmp/$NM/PIDs"
+
+sleep 6
+kill_pids
+
+print "Analyzing pcap ..."
+lines1=$(tshark -n -r "/tmp/$NM/eth0.pcap" 2>/dev/null | grep "IGMPv3 50 Membership Query" | tee -a "/tmp/$NM/result" | wc -l)
+lines2=$(tshark -n -r "/tmp/$NM/eth1.pcap" 2>/dev/null | grep "IGMPv3 50 Membership Query" | tee -a "/tmp/$NM/result" | wc -l)
+cat "/tmp/$NM/result"
+
+echo " => $lines1 IGMP Query on eth0, expected 2"
+echo " => $lines2 IGMP Query on eth1, expected 2"
+# shellcheck disable=SC2086 disable=SC2166
+[ $lines1 -eq 2 -a $lines2 -eq 2 ] || FAIL
+
+OK